Mercury(II) Thiocyanate - Wikipedia, The Free Encyclopedia

3
Mercury(II) thiocyanate - Wikipedia, the free encyclopedia http://en.wikipedia. org/wiki/Mercury(II)_thiocyanate [4/20/2014 9:44:06 PM] Mercury(II) thiocyanate Mercury (I I) thio cyanate Mercuric thiocyanate  Mercuric sulfocyanate Identifiers CAS number 592-85-8  PubChem 11615 EC number 209-773-0 Jmol-3D images Image 1 Properties Molecular formula Hg(SCN) 2 Molar mass 316.755 g/mol  Appearance White monoclinic powder Odor odorless Density 3.71 g/cm³, solid Melting point 165 °C (329 °F; 438 K)  (decomposes) Solubility in water 0.069 g/100 mL Solubility Soluble in dilute hydrochloric  acid, KCN, ammonia  slightly soluble in alcohol,  ether Hazards NFPA 704 LD 50 46 mg/kg (rat, oral) Except where noted otherwise, data are given for  materials in their standard state (at 25 °C (77 °F),  100 kPa)  (verify) (what is: / ?) From Wikipedia, the free encyclopedia  Mercury(II) thiocyanate (Hg(SCN) 2 ) is an  inorganic chemical compound , the coordination  complex of Hg 2+  and the thiocyanate  anion . It is a  white powder. It is best known for its former use in   pyrotechnics , as it will produce a large, winding  “snake” when ignited, an effect known as the  Pharaoh’s Serpent. [1] Contents [hide] 1 Synthesis 2 Pharaoh's serpent 3 Uses 3.1 Use in chloride analysis 4 References 5 External links Synthesis [edit] The first synthesis of mercury thiocyanate was  probably completed in 1821 by Jöns Jacob Berzelius: HgO + 2 HSCN → Hg(SCN) 2  + H 2 O Evidence for the first pure sample was presented in  1866 prepared by a chemist named J. Hermes. [1]  It is  prepared by treating solutions containing mercury(II)  and thiocyanate ions. The low solubility product  of  mercury thiocyanate causes it to precipitate from  solution. [2]  Most syntheses are achieved by  precipitation: Hg(NO 3 ) 2  + 2 KSCN → Hg(SCN) 2  + 2KNO 3 Pharaoh's serpent [edit] Mercury thiocyanate was formerly used in pyrotechnics  causing an effect known as the Pharaoh's serpent or  Pharaoh's snake. When the compound is in the Other names [hide] SMILES [show] InChI [show] 1 3 1  Article Talk Read Edit View history Main page Contents Featured content Current events Random article Donate to Wikipedia Wikimedia Shop Interaction Help About Wikipedia Community portal Recent changes Contact page Tools Print/export Languages ةي رلع Čeština Deutsch Français Italiano  Nederlands 日本語 Polski Português Русский Српски / srpski Srpskohrvatski /  српскохрватски Suomi 中 文 Edit links Create account Log in Search Go

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Mercury thiocyanate information from Wikipedia. Mercury compound.

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  • 5/25/2018 Mercury(II) Thiocyanate - Wikipedia, The Free Encyclopedia

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    Mercury(II) thiocyanate - Wikipedia, the free encyclopedia

    http://en.wikipedia.org/wiki/Mercury(II)_thiocyanate[4/20/2014 9:44:06 PM]

    Mercury(II) thiocyanate

    Mercury(II) thiocyanate

    Mercuric thiocyanate

    Mercuric sulfocyanate

    Identifiers

    CAS number 592-85-8

    PubChem 11615

    EC number 209-773-0

    Jmol-3D images Image 1

    Properties

    Molecular formula Hg(SCN)2

    Molar mass 316.755 g/mol

    Appearance White monoclinicpowd

    Odor odorless

    Density 3.71 g/cm, solid

    Melting point 165 C (329 F; 438 K)

    (decomposes)

    Solubilityin water 0.069 g/100 mL

    Solubility Soluble in dilute hydroc

    acid, KCN, ammonia

    slightly soluble in alco

    ether

    Hazards

    NFPA 704

    LD50 46 mg/kg (rat, oral)

    Except where noted otherwise, data are giv

    materials in their standard state(at 25 C (

    100 kPa)

    (verify)(what is: / ?)

    From Wikipedia, the free encyclopedia

    Mercury(II) thiocyanate(Hg(SCN) 2) is an

    inorganic chemical compound, the coordination

    complexof Hg2+and the thiocyanate anion . It is a

    white powder. It is best known for its former use in

    pyrotechnics , as it will produce a large, winding

    snake when ignited, an effect known as the

    Pharaohs Serpent.[1]

    Contents [hide]

    1 Synthesis

    2 Pharaoh's serpent

    3 Uses

    3.1 Use in chloride analysis

    4 References

    5 External links

    Synthesis [edit]

    The first synthesis of mercury thiocyanate was

    probably completed in 1821 by Jns Jacob Berzelius:

    HgO + 2 HSCN Hg(SCN)2+ H2O

    Evidence for the first pure sample was presented in

    1866 prepared by a chemist named J. Hermes.[1]It is

    prepared by treating solutions containing mercury(II)

    and thiocyanate ions. The low solubility product of

    mercury thiocyanate causes it to precipitate from

    solution.[2]Most syntheses are achieved byprecipitation:

    Hg(NO3)2+ 2 KSCNHg(SCN)2+ 2KNO 3

    Pharaoh's serpent [edit]

    Mercury thiocyanate was formerly used in pyrotechnics

    causing an effect known as the Pharaoh's serpent or

    Pharaoh's snake. When the compound is in the

    Other names [

    SMILES

    InChI

    13 1

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    http://en.wikipedia.org/wiki/CAS_registry_numberhttp://www.commonchemistry.org/ChemicalDetail.aspx?ref=592-85-8http://en.wikipedia.org/wiki/PubChemhttp://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=11615http://en.wikipedia.org/wiki/EC_number_%28chemistry%29http://esis.jrc.ec.europa.eu/lib/einecs_IS_reponse.php?genre=ECNO&entree=209-773-0http://en.wikipedia.org/wiki/Jmolhttp://chemapps.stolaf.edu/jmol/jmol.php?model=C%28%23N%29%5BS-%5D.C%28%23N%29%5BS-%5D.%5BHg%2B2%5Dhttp://en.wikipedia.org/wiki/Chemical_formulahttp://en.wikipedia.org/wiki/Molar_masshttp://en.wikipedia.org/wiki/Monoclinichttp://en.wikipedia.org/wiki/Odorhttp://en.wikipedia.org/wiki/Densityhttp://en.wikipedia.org/wiki/Melting_pointhttp://en.wikipedia.org/wiki/Solubilityhttp://en.wikipedia.org/wiki/Waterhttp://en.wikipedia.org/wiki/Solubilityhttp://en.wikipedia.org/wiki/Hydrochloric_acidhttp://en.wikipedia.org/wiki/Hydrochloric_acidhttp://en.wikipedia.org/wiki/Potassium_cyanidehttp://en.wikipedia.org/wiki/Ammoniahttp://en.wikipedia.org/wiki/Alcoholhttp://en.wikipedia.org/wiki/Etherhttp://en.wikipedia.org/wiki/NFPA_704http://en.wikipedia.org/wiki/Median_lethal_dosehttp://en.wikipedia.org/wiki/Median_lethal_dosehttp://en.wikipedia.org/wiki/NFPA_704#Bluehttp://en.wikipedia.org/wiki/NFPA_704#Redhttp://en.wikipedia.org/wiki/NFPA_704#Bluehttp://en.wikipedia.org/wiki/NFPA_704#Redhttp://en.wikipedia.org/wiki/Standard_statehttp://en.wikipedia.org/wiki/NFPA_704#Bluehttp://en.wikipedia.org/wiki/NFPA_704#Redhttp://en.wikipedia.org/wiki/NFPA_704#Redhttp://en.wikipedia.org/w/index.php?title=Special:ComparePages&rev1=442284218&page2=Mercury%28II%29+thiocyanatehttp://en.wikipedia.org/wiki/Wikipedia:WikiProject_Chemicals/Chembox_validationhttp://en.wikipedia.org/wiki/NFPA_704#Bluehttp://en.wikipedia.org/wiki/NFPA_704#Redhttp://en.wikipedia.org/wiki/Chemical_compoundhttp://en.wikipedia.org/wiki/Coordination_complexhttp://en.wikipedia.org/wiki/Coordination_complexhttp://en.wikipedia.org/wiki/Thiocyanatehttp://en.wikipedia.org/wiki/Anionhttp://en.wikipedia.org/wiki/Pyrotechnicshttp://en.wikipedia.org/wiki/Black_snake_%28firework%29http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#Synthesishttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#Pharaoh.27s_serpenthttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#Useshttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#Use_in_chloride_analysishttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#Referenceshttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#External_linkshttp://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=1http://en.wikipedia.org/wiki/J%C3%B6ns_Jacob_Berzeliushttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Solubility_producthttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-2http://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=2http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#http://en.wikipedia.org/wiki/Simplified_molecular-input_line-entry_systemhttp://en.wikipedia.org/wiki/International_Chemical_Identifierhttp://en.wikipedia.org/wiki/NFPA_704#Redhttp://en.wikipedia.org/wiki/NFPA_704#Bluehttp://en.wikipedia.org/wiki/NFPA_704#Yellowhttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanatehttp://en.wikipedia.org/wiki/Talk:Mercury%28II%29_thiocyanatehttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanatehttp://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edithttp://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=historyhttp://en.wikipedia.org/wiki/Main_Pagehttp://en.wikipedia.org/wiki/Portal:Contentshttp://en.wikipedia.org/wiki/Portal:Featured_contenthttp://en.wikipedia.org/wiki/Portal:Current_eventshttp://en.wikipedia.org/wiki/Special:Randomhttps://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=enhttp://shop.wikimedia.org/http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#http://en.wikipedia.org/wiki/Help:Contentshttp://en.wikipedia.org/wiki/Wikipedia:Abouthttp://en.wikipedia.org/wiki/Wikipedia:Community_portalhttp://en.wikipedia.org/wiki/Special:RecentChangeshttp://en.wikipedia.org/wiki/Wikipedia:Contact_ushttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#http://ar.wikipedia.org/wiki/%D8%AB%D9%8A%D9%88%D8%B3%D9%8A%D8%A7%D9%86%D8%A7%D8%AA_%D8%A7%D9%84%D8%B2%D8%A6%D8%A8%D9%82_%D8%A7%D9%84%D8%AB%D9%86%D8%A7%D8%A6%D9%8Ahttp://cs.wikipedia.org/wiki/Thiokyanatan_rtu%C5%A5nat%C3%BDhttp://cs.wikipedia.org/wiki/Thiokyanatan_rtu%C5%A5nat%C3%BDhttp://de.wikipedia.org/wiki/Quecksilber%28II%29-thiocyanathttp://fr.wikipedia.org/wiki/Thiocyanat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    Mercury(II) thiocyanate - Wikipedia, the free encyclopedia

    http://en.wikipedia.org/wiki/Mercury(II)_thiocyanate[4/20/2014 9:44:06 PM]

    Infobox references

    presence of a strong enough heat source, a rapid

    exothermic reaction is started which produces a large

    mass of coiling serpent-like solid. An inconspicuous

    flame which is often blue but can also occur in yellow/orange accompanies the combustion. The re

    solid can range from dark graphite grey to light tan in color with the inside generally much darker

    the outside.[1]

    This property was discovered by Whler in 1821, soon after the first synthesis of mercury thiocyan

    "winding out from itself at the same time worm-like processes, to many times its former bulk, a ve

    light material the color of graphite...". For some time, a firework product called "Pharaoschlangen"

    available to the public in Germany, but was eventually banned when the toxic properties of the pro

    were discovered through the death of several children mistakenly eating the resulting solid.[1]

    A similar, although less extreme, effect to the Pharaoh's serpent can be achieved using a firework k

    as ablack snake . These are generally benign products, usually consisting of sodium bicarbonateo

    mixture of linseed oil and naphthalenes .[citation needed]

    Uses [edit]

    Mercury thiocyanate has a few uses in chemical synthesis. It is the precursor to potassium

    tris(thiocyanato)mercurate(II) (K[Hg(SCN)3]) and caesium tris(thiocyanato)mercurate(II)

    (Cs[Hg(SCN)3]). The Hg(SCN) 3-ion can also exist independently and is easily reacted to form th

    compounds above amongst others.[3]

    Its reactions with organic halides yield two products, one with the sulfur bound to the organic comp

    and one with the nitrogen bound to the organic compound.[4]

    Use in chloride analysis [edit]

    It was discovered that mercury thiocyanate can improve detection limits in the determination of chlions in water by UV-visible spectroscopy. This technique was first suggested in 1952 and has been

    common method for determination of chloride ions in laboratories worldwide ever since. An autom

    system was invented in 1964 and then a commercial chloroanalyzer was made available in 1974 by

    Technicon (Tarrytown, NY , USA). The basic mechanism involves the addition of mercury thiocya

    a solution with unknown concentration of chloride ions and iron as a reagent . The chloride ions ca

    the mercury thiocyanate salt to dissociate and the thiocyanate ion to bind Fe(III), which absorbs int

    at 450 nm. This absorption allows for the measurement of concentration of the iron complex. This

    allows one to calculate the concentration of chloride.[5]

    It can be used for determining the concentration of chloride ions in aqueous solution. Mercury thioc

    without iron (III) is added to a solution with an unknown concentration of chloride ions, forming a

    complex of the mercury thiocyanate and chloride ion that absorbs light at a 254 nm, allowing more

    accurate measurements of concentration than the aforementioned technique using iron.[5]

    References [edit]

    1. ^ abcdDavis, T. L. (1940). "Pyrotechnic Snakes". Journal of Chemical Education17(6):

    270. doi:10.1021/ed017p268 .

    2. ^ Sekine, T.; Ishii, T. (1970). "Studies of the Liquid-Liquid Partition systems. VIII. The Solv

    http://en.wikipedia.org/wiki/Wikipedia:Chemical_infobox#Referenceshttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Black_snake_%28firework%29http://en.wikipedia.org/wiki/Sodium_bicarbonatehttp://en.wikipedia.org/wiki/Linseed_oilhttp://en.wikipedia.org/wiki/Naphthalenehttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=3http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-3http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-4http://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=4http://en.wikipedia.org/wiki/UV-visible_spectroscopyhttp://en.wikipedia.org/wiki/Tarrytown,_NYhttp://en.wikipedia.org/wiki/Reagenthttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-0http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-2http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-3http://en.wikipedia.org/wiki/Digital_object_identifierhttp://dx.doi.org/10.1021%2Fed017p268http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-2http://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=bcsj1926&cdvol=43&noissue=8&startpage=2422&lang=enhttp://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=bcsj1926&cdvol=43&noissue=8&startpage=2422&lang=enhttp://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=bcsj1926&cdvol=43&noissue=8&startpage=2422&lang=enhttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-2http://dx.doi.org/10.1021%2Fed017p268http://en.wikipedia.org/wiki/Digital_object_identifierhttp://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-3http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-2http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_ref-snakes_1-0http://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-cirello-5http://en.wikipedia.org/wiki/Reagenthttp://en.wikipedia.org/wiki/Tarrytown,_NYhttp://en.wikipedia.org/wiki/UV-visible_spectroscopyhttp://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=4http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-4http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-4http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-4http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-3http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-3http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-3http://en.wikipedia.org/w/index.php?title=Mercury%28II%29_thiocyanate&action=edit&section=3http://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Naphthalenehttp://en.wikipedia.org/wiki/Linseed_oilhttp://en.wikipedia.org/wiki/Sodium_bicarbonatehttp://en.wikipedia.org/wiki/Black_snake_%28firework%29http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Mercury%28II%29_thiocyanate#cite_note-snakes-1http://en.wikipedia.org/wiki/Wikipedia:Chemical_infobox#References

  • 5/25/2018 Mercury(II) Thiocyanate - Wikipedia, The Free Encyclopedia

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    Mercury(II) thiocyanate - Wikipedia, the free encyclopedia

    http://en.wikipedia.org/wiki/Mercury(II)_thiocyanate[4/20/2014 9:44:06 PM]

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    [sV TE

    Extraction of Mercury (II) Chloride, Bromide, Iodide and Thiocyanate with Some Organic

    Solvents" (pdf). Bulletin of the Chemical Society of Japan43(8): 24222429.

    doi:10.1246/bcsj.43.2422 .

    3. ^ Bowmaker, G. A.; Churakov, A. V.; Harris, R. K.; Howard, J. A. K.; Apperley, D. C. (1998

    "Solid-State 199Hg MAS NMR Studies of Mercury(II) Thiocyanate Complexes and Related

    Compounds. Crystal Structure of Hg(SeCN)2". Inorganic Chemistry37(8): 17341743.

    doi:10.1021/ic9700112 .

    4. ^ Kitamura, T.; Kobayashi, S.; Taniguchi, H. (1990). "Photolysis of Vinyl Halides. Reaction

    Photogenerated Vinyl Cations with Cyanate and Thiocyanate Ions". Journal of Organic

    Chemistry55(6): 18011805. doi:10.1021/jo00293a025 .

    5. ^ abCirello-Egamino, J.; Brindle, I. D. (1995). "Determination of chloride ions by reaction w

    mercury thiocyanate in the absence of iron(III) using a UV-photometric, flow injection meth

    Analyst120(1): 183186. doi:10.1039/AN9952000183 .

    External links [edit]

    "Pharaoh's snake" . YouTube . September 2, 2008.

    Mercurycompounds

    Categories : Hazardous air pollutants Pollutants Pyrotechnic chemicals Thiocyanates

    Mercury compounds

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